Pro Series Diaphragm Pumps

For General Industrial and OEM Installation Applications

ARO Pro Series air operated diaphragm pumps are ideal for general industrial and OEM installation applications. They can easily pump from clean, light viscosity fluids to corrosive, abrasive medium viscosity fluids and can transfer large particles without damage. Due to their pneumatic motor, they could be used in potentially explosive areas. Most of the ARO® diaphragm pumps are ATEX certified (CE Ex11 2GD X).


Our pumps offer the ability to vary the flow outlet and discharge pressure as slow as 0.26 gallons (1liter) per minute up to 275 gallons (1040 liter) per minute for our larger sizes and adjust fluid pressure up to 123 p.si. (8.5 bar), by using just an air filter / regulator and a needle valve.

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Why ARO diaphragm pumps?

All ARO Comapct Series diaphragm pumps feature an unbalanced valve design, which eliminates valve centering and pump stall-out-even under low air inlet pressures.

  • Sealess Design
  • Low Material Shear
  • Ease of Maintenance
  • Can Run Dry Without Damage
  • Portable
  • Self Priming
  • Easy-to-Install

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Chemical Compatibility  Guide

1/4" Non-Metallic

1/4" Non-Metallic

5.3 GPM (20.1 LPM)

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3/8" Non-Metallic

3/8" Non-Metallic

10.6 GPM (40.1 LPM)

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1/2" Classic Style Non-Metallic

1/2" Classic Style Non-Metallic

Ball: 13 GPM (49.2 LPM)
Duckbill: 10 GPM (37.9 LPM)

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1/2" Non-Metallic

1/2" Non-Metallic

14.4 GPM (54.5 LPM)

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3/4" Non-Metallic

3/4" Non-Metallic

14.8 GPM (56 LPM)

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1" Pro Series Non-Metallic

1" Pro Series Non-Metallic

47 GPM (177.9 LPM)

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1½" Pro Series Non-Metallic

1½" Pro Series Non-Metallic

100 GPM (378.5 LPM)

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2" Pro Series Non-Metallic

2" Pro Series Non-Metallic

145 GPM (548.8 LPM)

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1/2" Metallic

1/2" Metallic

12 GPM (45.4 LPM)

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3/4" Metallic

3/4" Metallic

13.6 GPM (51.5 LPM)

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1" Pro Series Metallic

1" Pro Series Metallic

35 GPM (133 LPM)

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1½" Pro Series Metallic

1½" Pro Series Metallic

90 GPM (340.7 LPM)

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2" Pro Series Metallic

2" Pro Series Metallic

172 GPM (651 LPM)

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3" Pro Series Metallic

3" Pro Series Metallic

237 GPM (897 LPM)

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